Watch.



G. F.. EBERHARD & w. T. vMALoNl-nr.

WATCH. I

APPLICATION mw mms. 1914.

Patented Nov. 20, 1917.

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' f f y a4 15 14 Aplate of a 'watch with the dial removed, 2

UNITED STATES 'PATENT GEORGE E. EBEEHARD `nim WILLIAM r. MALONEY, orarmaron, NEW JERSEY.

.ASSIGNORS lTC) ROBT. NEW YORK.

H. INGEEsoLE a Bao., A Joiiv'r-sr'oci; Assoorn'rion `or WATCH.

Patented Nov. 20, 191W.

K Application lerdanuary 8, V1914. Serial No. 811,056.

To all whovmrzt may concern.' p i l Be it known that we, GEORGE F.ylilEEnHi-inn and VILLIAM T. MALoNEv,l citizens of the United States,residing at Trenton, New Jersey, have invented certain new and usevfulImprovements in Watches, of which the following is a specification.

One object of our invention is to kprovide a stem winding and stemsetting mechanism which shall be readily accessible from 'the dial sideof the watch, ,and to provide a retaining cover for the controlling oroperating leversandother parts, and a .bridge for the minute wheel.

The invention consists in the features and combination and rarrangementof, parts hereinafter described and particularly pointed out in theclaims. u

In the accompanying drawingsl Figure 1 represents ya plan view of avportion of a watch on the dial side thereohthe dial and hands beingVomitted;

Fig. 2 is a sectionaljview along theline QhQof Fig. 1, looking in thearrowl direction;

Fig. 3 is a sectionalview on the line 3 3 of Fig. 1;

\ Fig. 4L is a sectional view ,on the line 4-4 Atheretaining bridge.omitted, and with the hour wheel omitted; n

Fig. 6 represents in plan and in elevation the combined cover and minutebridge.

In these drawings, 1 rindicates the dial represents the bridge which isattached to the rear or under face of the dial plate, and in a recessinwhich is located the winding wheel 3. This winding wheel is engaged bythe winding gea-r L which is mounted on the Winding stem A5, the windingstem being rect'angulariincross section and being slidable through thewinding gear. 6 represents the sliding clutch mounted on the Windingstem, and which is turnable therewith because of the rectangular -formof the winding stein, the said clutch, as is usual, having teeth 7 toengage clutch teeth 8 formed with the winding gear. The ,clutch is alsocombined with a crown wheel 9, as usual, which is adapted to mesh withthe minute wheel 10 suitably mounted on a stud or pin 1l on the dialplate, this wheel transmitting its motion in the ordinary way 'engagedfrom the lever 13. `The general through a .toothed wheel to the minute'hand. The crown wheel is .shiitable with the said lever 13 being pivotedena piu il extending from the dial plate. This lever is controlled by aspring 15, and another lever 16, with which also the Isyn-ing. 1.3engages, is pivoted on a pin 17 mounted in the `dial plate and having anarm 18 engr-iging a groove in the head of the winding stem, as shown at19. The lever 16 VIalso has an, arm 20 adapted to work against the edgeof the lever 13. When the winding stem is pulled outwardly radially, thelever 16 is operated `to cause its arm 20 to work against the edge. ofthe lever 13, and shift the clutch out of connection with the windinggear 4, and at the same time shift the crown` gear 9 into mesh withtliedloothed minute wheelvso that upon turning the winding stem thesetting of the hands may `be effected. l Vhen thewinding stein isoperated inwardly tooccupy its normal position, the lever 16 is thrownout of engagement with the lever 13, allowing the spring 15 to act tothrow the clutch into engagement with the clutch` on the winding gear,and. to. retract the crown gear from the toothed minute wheel. As shownin Fig. 5, the lever 16 engages a notch in the lever 13 when ,the partsare in setting position, whereas, as shown in Fig. 1,A when the partsare in winding position the lever 16 is disform of mechanism abovedescribed and 'the action thereof is generally old. The engagement ofthe lever arm 18 with the winding stem is directly over the centerojtsaid stem, and as above stated this is true'also of the relation of the.end of` the lever, 13 to the winding stem, clutch and crown gear; thatis, the points of engagement between ,these levers and the parts oi thestem wind- Ving formed in the dial plate 1. This dial plate is cut awaythroughout nearly the whole extent of the crown gear, clutch, windinggear, and the grooved portion of the stem so that these parts aresubstantially located on the dial side of the dial plate, beingaccessible from the dial side and without removing the bridge 2 or thewinding gear 3. This cut away part or opening communicates with asubstantially circular ref cess 22 formed in the dial plate, this recessbeing shallow, and of a depth `only sufficient to accommodate thethickness of the levers 16, 13, and the width of the spring 15. Thisrecess has a shoulder 23 about its edge, and we fit over this recess acover plate or bridge 24 the edge of which finds a bearing on theshoulder 23 throughout the major portion of its extent. This cover plateis shown particularly in Fig, 6. 'It is of circular form in its majorportion, and has a partly circular extension'25 provided with a recessor opening 26 to accommodate the toothed wheel 27 of the hour train. Theportions 27 form a bridge or cover for tho minute wheel 10, asindicated. The plate lies in the same plane with the hour train, and itis held in place by a single screw 28. This cover plate, when in place,as shown in Figs. 2, 3 and 4, closely overlies the levers 16, 13, andtheir spring 15, and serves to retain these parts in place, besidesforming a cover for the main parts of the stem winding and stem settingelements. The levers 16 and 13 need only be dropped onto theirpivot'pins 14 and 17, and the spring 15 need only be placed in properengagement with the levers and then, by securing the cover plate 24 inplace, these parts will be retained in their proper working positions.The cover plate 24 is provided with an opening 29 for accommodating thewinding gear 4, which projects through said opening slightly, as shownin Figs. 1 and 2, this opening 29 having an extension 30 over theclutch, so that the position and action of this may be observed. It alsohas an observation opening at 31 through which the action of the crowngear 9 and its engage ment with the toothed wheel 10 may be observed,and it has an opening at 31 adjacent the lever 13. By removing thesingle screw 28 the whole cover plate may be removed and access had tothe winding and stem setting mechanism from the dial side of the watch,and to replace the cover it is simply necessary to seat it against theshoulder 23 and over the recess 22, and then, by applying the screw 28,the mechanism will be inclosed, and in proper condition for operation.By having the journal 21 of the winding stem at itsy inner end bear inan opening in the dial plate, all side play of this stem winding andsetting mechanism is avoided, and a uniform, accurate and easy rotationof the stem and its associated parts is secured, and the fitting can bedone with ease and accuracy.

It will be seen that the levers 16, 13, arranged as described with theirengaging ends over the aXial center of the clutch and winding stem, willmove these parts directly radially without imparting any side thrust,thus rendering the action easy and free.

We claim as our invention 1. In combination `with a dial plate recessedon its dial side and having a shoulder around its upper edge and a pairof pivot studs arranged in said recess, a pair of levers mounted on saidstuds within the recess and engaging respectively the winding stem andthe clutch, a minute wheel below the surface of the dial plate, saiddial plate having a recess conforming to and receiving said minute wheeland forming an extension or continuation of the main recess, a toothedwheel for the hour train arranged on the dial side ofthe minute wheeland a cover for the recess fitting the shoulder thereof and lying overthe levers and studs to retain the said levers in place, said coverhaving an extension projecting into the extension of the main recess andoverlyino the minute wheel on the dial side thereof), substantially asdescribed.

2. In combination with a dial plate recessed on its dial side and havinga shoulder around its upper edge and a pair of pivot studs arranged linsaid recess, a pair of levers mounted on said studs within the recessand engaging respectively the winding stem and the clutch, a minutewheelbelow the surface of the dial plate, said dial plate having arecess conforming to and receiving said minute wheel and forming anextension or continuation of the main recess, a toothed wheel for thehour train arranged on the dial side of the minute wheel and a cover forthe recess fitting the shoulder thereof and lying over the levers andstuds and having a forked shaped extension overlying a part of the dialside of the minute wheel and embracing said toothed wheel, substantiallyas described.

In testimony whereof we ailix our signatures in presence of twowitnesses.

GEO. F. EBERHARD. WILLIAM T. MALONEY.

Witnesses: CHARLES'H. MARGERUM, HOWARD M. GRorr.

Copies of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents,

Washington, D. C. f Y

